Essential, the new smartphone company founded by Android operating system creator Andy Rubin, is planning to ship its first pre-ordered flagship smartphones soon. The general launch date for the Essential Phone remains unknown, ...

The total solar eclipse crossing America on Aug. 21 will be the first eclipse to march from sea to shining sea in nearly 100 years. This astronomical event is a unique opportunity for scientists studying in the shadow of ...

Telephone

The telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice") is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely recognized around the world.

The device operates principally by converting sound waves into electrical signals, and electrical signals into sound waves. Such signals when conveyed through telephone networks — and often converted to electronic and/or optical signals — enable nearly every telephone user to communicate with nearly every other worldwide. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡, ☎, ☏, and ✆.